Global Patent Index - EP 1281065 A1

EP 1281065 A1 20030205 - METHOD AND DEVICE FOR THE DETERMINATION OF THE NUMBER OF EVENTS WITH RESPECT TO THE DENSITY OF REGULAR STRUCTURES

Title (en)

METHOD AND DEVICE FOR THE DETERMINATION OF THE NUMBER OF EVENTS WITH RESPECT TO THE DENSITY OF REGULAR STRUCTURES

Title (de)

VERFAHREN UND VORRICHTUNG FÜR DIE BESTIMMUNG DER ANZAHL EREIGNISSE RESP. DER DICHTE VON REGELMÄSSIGEN STRUKTUREN

Title (fr)

PROCEDE ET DISPOSITIF POUR DETERMINER LE NOMBRE D'EVENEMENTS OU LA DENSITE DE STRUCTURES REGULIERES

Publication

EP 1281065 A1 20030205 (DE)

Application

EP 00920325 A 20000510

Priority

CH 0000261 W 20000510

Abstract (en)

[origin: WO0186269A1] The invention relates to a method for the determination of the number of events per unit length, for example the density of threads in a textile- or metal-weave sample, whereby a strip of the sample is mapped on a CCD array. The signal from the CCD array is subjected to a fourier transformation and the frequency with the highest amplitude is determined as the number of events required. From this figure the result can be converted into number of events per unit length by a microprocessor, which can advantageously also perform the fourier transform and is preferably directly displayed in digital form and/or fed to an external computer by means of an interface, for storage and further processing. The above method is very quick, simple and accurate and allows precise monitoring of such events with economic means.

IPC 1-7

G01N 21/898; D06H 3/12; G01N 33/36

IPC 8 full level

G01N 21/89 (2006.01); G01N 21/898 (2006.01); G01N 33/36 (2006.01)

CPC (source: EP)

G01N 21/8903 (2013.01); G01N 21/8983 (2013.01); G01N 33/367 (2013.01); B65H 2551/22 (2013.01)

Citation (search report)

See references of WO 0186269A1

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

DOCDB simple family (publication)

WO 0186269 A1 20011115; AU 4097300 A 20011120; EP 1281065 A1 20030205

DOCDB simple family (application)

CH 0000261 W 20000510; AU 4097300 A 20000510; EP 00920325 A 20000510